A PaO2 test measures partial pressure of oxygen, or PaO2—the oxygen pressure in arterial blood. The PaO2 reflects how well oxygen is able to move from the lungs to the blood. It is often altered by ...

Guests: Jacob Stoller at 1:28 and Jeff O'Neill at 30:26.

CLEVELAND — Another wreck occurred Friday morning along Dead Man’s Curve, this time in the westbound lanes of I-90. It’s part of a troubling trend on the treacherous stretch of highway.